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Local Fuel plc - Shoreham Oil Terminal
Safety Instrument System Functional Safety Assessment Stage 5
P & I Design Ltd
DOCUMENT NO: LF364100_RPT
2 Reed Street, Thornaby, UK, TS17 7AF
ISSUE: A DATE: 15.06.2015
Tel: + 44 (0)1642 617444
PAGE 30 OF 32
Fax: + 44 (0)1642 616447
www.pidesign.co.ukSpurious Trips:
No spurious trips have occurred.
Random Hardware Failure:
No hardware failures have occurred.
Systematic Capability and Systematic Failures:
No systematic failures have been identified.
Operating Difficulties:
Local Fuel plc have taken over the operation of the Terminal and the SIS with no handover
from Valero. They have now operated the system for 18 months and have had no difficulty or
problems with the system.
Interface with BPCS:
The import valve is opened and closed via the HMI system. However, the BPCS can not
interfere with the operation of the SIS system as this is performed on the dedicated hardwired
input to the valve.
The SIS sensors are all displayed on the HMI, but again this is indication only and cannot
interfere with the SIF.
Maintenance Issues:
No issues have been identified.
Functional Capability:
Not included in Revision A of this FSA.
5.8
Training
As stated previously SIS awareness training has been conducted for all operational staff of
Local Fuel plc.
5.9
Further Safety Assessments
Other than for any FSA 5’s due to modification, which will be conducted as and when, it is
not expected to perform a further FSA 4 for approximately three years when Local Fuel plc
will have approximately five years of Terminal ownership and experience in operation of these
systems.
5.10 Compliance to BS EN 61511
Not Included in Revision A of this FSA.